Expected

* AFFECTED AREA...In South Dakota, Hughes and Lyman. * WINDS...Northwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* WHAT...For the Heat Advisory, High temperatures up to 102 with widespread Moderate HeatRisk expected. For the Wind Advisory, west winds 15 to 25 mph with gusts to 35 mph. * WHERE...West Side Mountains north of 198. Includes areas along Interstate 5 and San Luis Reservoir. * WHEN...For the Heat Advisory, until 8 PM PDT Tuesday. For the Wind Advisory, from 5 PM Tuesday to 8 AM PDT Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hot

* WHAT...High temperatures up to 102 with widespread Moderate HeatRisk expected. * WHERE...San Joaquin Valley, Coastal Ranges south of Highway 198, Lake Isabella, and Kern River Valley. * WHEN...Until 8 PM PDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose

* WHAT...For the Heat Advisory, High temperatures up to 102 with widespread Moderate HeatRisk expected. For the Wind Advisory, west winds 15 to 25 mph with gusts to 35 mph. * WHERE...West Side Mountains north of 198. Includes areas along Interstate 5 and San Luis Reservoir. * WHEN...For the Heat Advisory, until 8 PM PDT Tuesday. For the Wind Advisory, from 5 PM Tuesday to 8 AM PDT Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hot

* WHAT...Sub-freezing temperatures as low as 25 expected. * WHERE...A portion of central Pennsylvania. * WHEN...Until 8 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Those with agricultural interests should protect sensitive vegetation. Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation.

* AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union.

Winds are calming across the area and RH is beginning to recover allowing the Red Flag Warning to Expire.

* WHAT...Temperatures tonight will fall into the upper 20s and lower 30s, resulting in a widespread frost and freeze. * WHERE...Portions of central New York and northeast Pennsylvania. * WHEN...Until 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

At 911 PM EDT, Doppler radar was tracking a strong thunderstorm near Lakewood Park, or near Indrio, moving southeast at 15 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Fort Pierce, Vero Beach South, Fort Pierce Inlet, White City, and Indrio. If outdoors, consider seeking shelter inside a building.

* WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...Bay, Huron, Lapeer, Macomb, Midland, Sanilac, St. Clair, and Tuscola Counties. * WHEN...Until 8 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.